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- W4301664059 abstract "We first discuss two-body and chain regularization methods for direct N-body simulations on HARP-2 and GRAPE-6. The former is used for accurate integration of perturbed binaries and hierarchies, whereas the latter deals with strong interactions involving binaries. Combined with a powerful stability criterion for hierarchical systems, this versatile treatment provides an efficient way of studying all dynamical processes in globular clusters containing a realistic population of primordial binaries. These algorithms are also ideal for modelling a variety of astrophysical effects, such as averaging over Kozai cycles, tidal circularization, spin-orbit coupling and stellar collisions, where well-defined elements are used to describe near-singular solutions. We also describe a new time-transformed leapfrog scheme which has been developed to deal with black-hole binaries in galactic centres. This formulation is valid for large mass ratios and dominant two-body motions in a compact subsystem can be treated accurately in the post-Newtonian approximation. This method has been combined with the existing regularization algorithms into a new simulation code NBODY7. Some preliminary results of a test problem illustrating possible applications are presented." @default.
- W4301664059 created "2022-10-05" @default.
- W4301664059 creator A5054612552 @default.
- W4301664059 date "2001-10-05" @default.
- W4301664059 modified "2023-09-26" @default.
- W4301664059 title "Regularization Tools for Binary Interactions" @default.
- W4301664059 doi "https://doi.org/10.48550/arxiv.astro-ph/0110148" @default.
- W4301664059 hasPublicationYear "2001" @default.
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